<table border="1" class="dataframe">
  <thead>
    <tr>
      <th></th>
      <th></th>
      <th colspan="2" halign="left">bar</th>
      <th>baz</th>
      <th>...</th>
      <th>foo</th>
      <th colspan="2" halign="left">qux</th>
    </tr>
    <tr>
      <th></th>
      <th></th>
      <th>one</th>
      <th>two</th>
      <th>one</th>
      <th>...</th>
      <th>two</th>
      <th>one</th>
      <th>two</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <th rowspan="2" valign="top">bar</th>
      <th>one</th>
      <td>NaN</td>
      <td>NaN</td>
      <td>NaN</td>
      <td>...</td>
      <td>NaN</td>
      <td>NaN</td>
      <td>NaN</td>
    </tr>
    <tr>
      <th>two</th>
      <td>NaN</td>
      <td>NaN</td>
      <td>NaN</td>
      <td>...</td>
      <td>NaN</td>
      <td>NaN</td>
      <td>NaN</td>
    </tr>
    <tr>
      <th>baz</th>
      <th>one</th>
      <td>NaN</td>
      <td>NaN</td>
      <td>NaN</td>
      <td>...</td>
      <td>NaN</td>
      <td>NaN</td>
      <td>NaN</td>
    </tr>
    <tr>
      <th>...</th>
      <th>...</th>
      <td>...</td>
      <td>...</td>
      <td>...</td>
      <td>...</td>
      <td>...</td>
      <td>...</td>
      <td>...</td>
    </tr>
    <tr>
      <th>foo</th>
      <th>two</th>
      <td>NaN</td>
      <td>NaN</td>
      <td>NaN</td>
      <td>...</td>
      <td>NaN</td>
      <td>NaN</td>
      <td>NaN</td>
    </tr>
    <tr>
      <th rowspan="2" valign="top">qux</th>
      <th>one</th>
      <td>NaN</td>
      <td>NaN</td>
      <td>NaN</td>
      <td>...</td>
      <td>NaN</td>
      <td>NaN</td>
      <td>NaN</td>
    </tr>
    <tr>
      <th>two</th>
      <td>NaN</td>
      <td>NaN</td>
      <td>NaN</td>
      <td>...</td>
      <td>NaN</td>
      <td>NaN</td>
      <td>NaN</td>
    </tr>
  </tbody>
</table>
